CAN3滤波器配置示例代码

CAN3滤波器配置示例代码如下所示：

#include <mcp_can.h>
#include <SPI.h>

#define CAN0_INT 2
MCP_CAN CAN0(10); // Set CS to pin 10

void setup()
{
    Serial.begin(115200);
    if (CAN0.begin(MCP_ANY, CAN_500KBPS, MCP_16MHZ) == CAN_OK)
    {
        Serial.println("CAN BUS Shield init OK!");
    }
    else
    {
        Serial.println("CAN BUS Shield init failed");
    }

    CAN0.init_Mask(0, 0, 0x7FF); // Initialize filter mask
    CAN0.init_Filt(0, 0, 0x123); // Initialize filter setting
}

void loop()
{
    if (CAN_MSGAVAIL == CAN0.checkReceive()) // Check if message is received
    {
        CAN0.readMsgBuf(&len, buf); // Read the message
        unsigned long canId = CAN0.getCanId(); // Get the ID of the received message
        for (int i = 0; i < len; i++)
        {
            Serial.print(buf[i]);
            Serial.print("\t");
        }
        Serial.println();
    }
}